In short
Selling a home happens in four stages: prepare the documents, put the property on the market, sign the sale agreement (compromis de vente / verkoopovereenkomst), then sign the notarial deed (acte authentique / authentieke akte) at the notary’s. The compromis “amounts to a sale” and in practice the deed follows within about four months at most (according to Wikifin; be.brussels specifies that the law sets no time limit between the compromis and the deed). The EPB certificate (PEB) must appear in the advertising and be given to the buyer before the compromis. If the electrical inspection of a home is negative, the buyer in principle has 18 months after the deed to bring the installation into compliance. Start the formalities early: some documents take weeks.
Step 1: gather the documents
The notary describes the documents the seller must provide. The list depends on the Region and the type of property.
- The title deed: your purchase deed. If you inherited, you need proof of your status as heir, the inheritance tax return and, if it exists, the deceased’s purchase deed.
- Planning information (renseignements urbanistiques / stedenbouwkundige inlichtingen): the zoning of the land, permits, planning certificates. The requirements vary from one Region to another. The commune or municipality is the basic point of contact.
- The EPB certificate (energy performance). It must appear in all sale advertising in all three Regions. The notary specifies that it must also be given to the buyer “before the sale agreement is signed”. See our guide to the EPB certificate.
- The electrical inspection for a home, by an approved body. See the guide electrical inspection on sale.
- The soil certificate (attestation du sol / bodemattest) (pollution): in Brussels, a mandatory application to Bruxelles Environnement (the Brussels environment agency), to be given to the buyer before the deed; in Wallonia, a certified extract from the soil condition database to be consulted before any transfer; in Flanders, a bodemattest to be obtained before the compromis.
- The post-intervention file (DIU / postinterventiedossier), which gathers the information useful for future works. See the DIU guide.
- Oil heating, if there is a tank: the notary sets no explicit obligation, but the seller must inform the buyer (capacity, location, year of installation). See the tank guide.
Flat in co-ownership
Before the compromis, the seller in principle provides the amounts of the working capital fund and the reserve fund, any arrears of their own, the calls for funds, ongoing court proceedings, the minutes of the general meetings of the last three years and the last approved balance sheet. At the deed at the latest: expenses decided but payable after the deed, urgent works and the co-ownership’s debts linked to disputes. The syndic (the manager of the co-ownership) provides most of these documents. See co-ownership and syndic.
Rented property
Reread the lease, the inventory of fixtures and the rental deposit. Check whether the tenant has a right of first refusal and the notice period to be respected.
Step 2: put the property on the market
A private sale is, according to notaire.be, “the most common way” to sell, with or without an intermediary. Other routes exist: the online sale (Biddit) and the public sale, which is carried out exclusively by a notary.
If you use an agency, read the contract carefully: see the brokerage contract. For the agent, see also how to check an IPI estate agent.
Step 3: the offer, then the compromis
A purchase offer binds the person who makes it: notaire.be writes “An offer binds you!”. When a buyer makes you an offer that you accept, you move on to the compromis.
The sale agreement is most often signed at the notary’s, with payment of a deposit. Wikifin sums it up: “The sale agreement amounts to a sale.” Once it is signed, you can no longer sell to anyone else. It may contain a condition precedent, for example the buyer obtaining a loan. For the details, see the sale agreement.
Step 4: from signature to the deed
After the compromis, the notary carries out the mortgage and tax searches and prepares the notarial deed. They collect the registration duties (paid by the buyer, see registration duties) and organise the financial settlement between the parties. According to Wikifin, the deed is signed in practice within four months at most after the compromis; according to be.brussels, the law sets no time limit between the two, but the registration duties must be paid within 4 months of the compromis. The pages consulted give no other precise time limit. Your notary will give you the timetable for your file. See the role of the notary.
And tax on the sale?
If you resell a built property less than 5 years after buying it, the capital gain may be taxed at 16.5%. The home you occupy as the family home is exempt. See capital gains on property.
What it costs
The official pages consulted give no overall scale of costs for the seller. Here is what is stated: the electrical inspection is in principle paid by the seller, unless otherwise agreed in the compromis; the EPB certificate and the soil certificate are formalities to plan for. An agency’s fees are set out in the brokerage contract. For the notary’s fees, ask the office for a statement before signing. To estimate what the buyer will pay on their side, use our purchase cost tool.
Which professional to consult
The notary checks the title deed, drafts the compromis or reviews the agency’s, then executes the deed. An estate agent can handle the listing and the viewings. The EPB assessor and the electrical inspection body are approved professionals. For the capital gain, the notary or an accountant can advise you.
Frequently asked questions
How long between the compromis and the deed?
According to Wikifin, four months at most in practice (not a legal time limit, according to be.brussels). The exact length depends on the buyer’s bank, the documents and the notary’s workload.
Can I sell without an EPB certificate?
Not for the advertising: the EPB certificate must appear in it in all three Regions. It must also be given to the buyer before the compromis.
What happens if the electrics are not compliant?
A negative report does not prevent the sale. The buyer in principle has 18 months after the deed to bring the installation into compliance. The deed states whether the report is positive or negative.
Who pays for the electrical inspection?
In principle the seller, unless the parties agree otherwise.
Do I need to watch the time limits for the soil certificate?
Yes. In Flanders, the soil certificate must be obtained before the compromis, and the notary points out that it takes time. In Brussels, it must be given to the buyer before the deed.
General information drawn from the official sources cited and dated on this page. It is not legal, tax or financial advice: for your own situation, ask a licensed professional.
More guides on selling
- Capital gains on property in Belgium: when are they taxed?
- Electrical inspection when selling a house in Belgium
- Heating oil tank: obligations when selling
- Post-intervention file (DIU) when selling in Belgium
- Selling a jointly owned or inherited property in Belgium
- Selling through an estate agent: the brokerage contract
- Woningpas: the digital passport of your home in Flanders
Sources
- Vendre un bien : documents du vendeur (notaire.be) (consulted 13 October 2026)
- Checklist des documents à prévoir pour le vendeur (notaire.be) (consulted 13 October 2026)
- Comment acheter ou vendre un bien ? (notaire.be) (consulted 13 October 2026)
- Qu'est-ce qu'un compromis de vente ? (wikifin.be) (consulted 13 October 2026)
- Taxes sur les plus-values immobilières (notaire.be) (consulted 13 October 2026)